Doffing device for spoolers



A. E. RHOADES. DOFFING DEVICE FOR SPOOLERS. APPLICATION FILEDDEC.I0,19I7- 1ALQ5 Q53; Patented Aug. 8, 1922;,

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DOFFING DEVICE FOR SPOOLERS.

APPLICATION FILED .0501 I0, 1917.

' 11,,4LQ5 53, PatentedlAug. 8 11922;.

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ALONZO E. RHOADES, OF HOPEDALE, MASSACHUSETTS, ASSIGNQR TO DRAPER CORPO-RATION, Q15 HOPEDALE, IVIASSACHUSETTS, A CORPORATION OF I-JEAINE.

DOFFING DEVICE SPOOLERS.

Specification of Letters Patent.

Patented Aug. 8, 1922.

Application filed December 10, 1917. Serial No. 206,390.

T 0 all '10 7mm it may concern Be it known that I, ALoNzo E. RHoADns,

a citizen of the United States, residing at Hopedale, county ofWorcester, State of Massachusetts, have invented an Improvement inDoffing Devices for Spoolers, of which the following description, inconnection with the accompanying drawing, is a specification, likecharacters on the drawing representing like parts.

This'invention relates tospoolers and the object of the invention is toprovide a simple and efficient means for dofiing the yarn carrier.

The invention is particularly applicable to a type of spooler providedwith yarn guiding and tension devices orother adjuncts so located as torender it more or less diflicult for the operative to doff the yarncarrier directly by hand and the object of the invention is thereforefurther .to provide a dofling mechanism extending into a positionreadily accessible to the operative.

The object of the invention is further to rovide a dofling machanism fora spooler which shall not only lift the yarn carrier from its positionon the holding support but shall also automatically shove the yarncarrier laterally so that it may be delivered free of the holdingsupport and, for example, onto the usual traveling endless conveyor ofthe spooler.

These and other objects and features of the invention will appear morefully from the accompanying description and drawings and will beparticularly pointed out in the claims.

The invention in a preferred form is dofiing mechanism embodying myinvention.

The present invention is not concerned with they particular constructionof the spooler and it is unnecessary therefore to describe in-detail anordinary type of spoolersuch as that herein illustrated. It will besufiicient to note that the frame 1 of the spooler is provided with theusual drum shaft 2 extending longitudinally of the machine and fromwhich belts run to the whorls 3 for driving the spool carriers 4: onwhich are vertically mounted the spools 5. There are usually two rows-ofthese spools arranged on opposite sides of the machine and driven fromthe drum shaft.

In front of and below each row of spools extends a horizontal rod 6supported on the frame. Holders for the yarn carriers or bobbins areprovided usually one for each spool and such a holder is herein shown at7 as a casting recessed. to embrace the rod 6 and rigidly securedthereto by a set screw 8. The yarn carrier or bobbin holder is mountedon the rod 6 usually at an inclination to the horizontal although itsparticular position in this respect maybe varied as desired.

. The holder 7 at the lower end is provided with the usual step 9 fromwhich projects a short spindle or stud 10 over which is placed the yarncarrier which is herein shown as a bobbin 11.

The yarn runs from the bobbin which is herein, shown as of the fillingwind type off from the end to guiding and tension devices 12, 13 and 14:carried at the upper end of the holder 7 and partly on a bracket 15projecting over and above the step 9. These guiding and tension devicesare herein illustrated as of the construction shown in thebefore-mentioned patent but may be of any suitable type andconstruction. From the guiding. and tension devices the yarn 11 runs tothe usual traversing guide 16 of which there is one for each spool.These traversing guides are carried by the usual horizontal traverse rod17 which by suitable mechanism is given a vertical traversing movementover the length of thespoolsb.

At the front of the frame 1 and beneath.

the holders 7 and supported by the brackets 18' are mounted the usualboxes 19 to receive and hold the full yarn; carrierswhile between theseboxes and the frame is mounted an endless traveling conveyor 2O runningacross the front of the-frame and Which receii' esuponitsupper run the"spent yarn somewhat difficult operation and delays the operationof themachine.

This inventionprovides means readily accessible to the hand of theoperative by which by a simple manual operation each yarn carrierisdeffed and also at the end of tlie dbffing operation isshovedlaterally or ejected directly onto the upper run of the conveyor20. I

In the construction illustrated an operating device shown as a rod 21'is mounted ontlie' holtler adjac'ent the stud 1'0 and extendedintoaposition to'be readily accessible to; the operative. This rod atits upper end slides through alaterally projecting portion'22 ofthebr'acket 1'5 and at its upper end is provided with a head or handle23 easily withi'irreach ofthe operative. At its lower end therodisformed with a flattened portion 24 containing a slot 25 extending" ina direction inclined to the lengthof tlierod and-"'this*-slbtted ortionrides over a in 26 projectihg'frdm a lateral extension 27 of the step 9.

Thero'd 21 has mounted thereon and extending laterally therefrom a"bifurcated arm 28. This arm 28 is"secured to the rod by a hub 29' formedintegrally therewith surrounding the rod and a set'scr'e'vv 30 passingthrough the'hub' into engagement with the rod.

When the rod is in its lbw'ermost-position the bifurcated arm 28extendslaterally be"- match the yarn ca'rrier'or bobbin 11 as the bobbinis seated in its operative position '29sunr0und-ingi the plunger shankand abuts between a recessed portion of the hub and the head'of theplunger. Whenthe parts I are in the position show-nin Fig; 3 and thebobbin is on its stud the" plun'ger'is so an ranged asto just aboutcontact with-thebutt of the-yarn carrier or the rings 34-usuallysurrounding thebutt. I

Inthe operation of the device when it is: desiredto doff a bobbin theoperative seizes: the: head 23 which is easily accessible and elevatesthe rod 2 1. This causesthe bifurcated arin 28 resting beneath thebobbin: to lift the bobbin offfrom and clear of the stud 10. But owingto the inclination-of the slot25 riding over the pin 26 which makes:

a sliding cam connection between the rod and theholder'and the fact thatthe plunger 31' restsagainst the butt of the bobbin it-w-ill' be seenthat during this elevating. move-- ment theplunger'ispressed inwardlycompressing the spring 33. 0 Hence when the bobbin reachesthe end of itselevating inove-- ment and'is freed from the stud 10 the-plum ger willspring. outwardly and shove or force: the bobbin laterally so as tothrow it to one side of the holder and consequentlyithebobbin willfallupon thefupper run of the con veyor 20 and be carried away; Thus thedoffing operation isperformed by asimple manual operation' and in' amanner which: enables 'the' operative .to lose no time and in amannerwhich insuresthe ejection of the bobbin ontot-he endless conveyor.Having fully described my invention, what I claim as-new and desire tosecure: by Diet ters: Pate'ntis:

1. In a spooler a' yarn carrier stud carried thereby to receive andh'oldthe yarn carrier in spooling position, an operating device mounted onthe holder adjacent said stud and: extended into'a position to bereadily accessible to the operative, an arm extending from saiddevice-beneaththe yarn holder, in I carrier when seated: on said .stud,-asliding.

cam connection between said device and said holder, and a springcontrolledlaterally movable plunger carried by the rod'adjacent the buttof the yarn carrier, the said spring as the device is operated to donthe yarn carrier from said stud, whereby when the yarn carrier is liftedclear ot the stud the plunger acts't'oshove it laterally.

cam connection acting to compress thei 2. In a spooler a yarn carrierholder, a stud carried thereby to receive and hold the yarn carrier inspooling position, an operating device mounted on the holder adjacentsaid stud and extended into a position to be readily accessible to theoperative, an arm extending from said device beneath the yarn carrierwhen seated on said stud, an inclined slot and pin connection betweensaid device and said holder, and a spring-pressed laterally movableplunger carried by said device and engaging the butt of the yarn carrierwhen in spooling position on said stud, whereby, when said device iselevated to dolf the yarn carrier, the spring is compressed and beingreleased when the yarn carrier is lifted clear of the stud the plungeracts to shove the yarn carrier laterally.

3. In a spooler a yarn carrier holder, means mounted thereon to receiveand hold the yarn carrier in spooling position, means mounted in fixedposition with respect to the yarn carrier holder and acting whenoperated to withdraw the yarn carrier from said holding means, andcooperating mechanism placed in operative condition by such Withdrawingoperation to then automatically shove the yarn carrier laterally wherebythe yarn carrier is dofled from the holder.

4. In a spooler a plurality of studs to receive and hold the yarncarriers in spooling position and a corresponding plurality of separateindividually manually operated means acting When operated to dofi eachyarn carrier clear of its stud.

5. In a spooler a yarn carrier holder a stud on the holder to receiveand hold the yarn carrier in spooling'position, a device operated by asingle manual movement, including means mounted on the holder adjacentthe stud and acting upon the operation of said device to lift the yarncarrier clear of said stud and shove it bodily laterally when clear ofthe stud.

6. In a spooler a stud to receive and hold the yarn carrier in spoolingposition, an arm extending beneath the yarn carrier, means for elevatingsaid arm to dofi the yarn carrier from said stud, and means actingautomatically to shove the bobbin laterally when it is elevated clear ofsaid stud.

7. In a spooler a stud to receive and hold the yarn carrier in spoolingposition, an arm extending beneath the yarn carrier, means for elevatingsaid arm to doff the yarn carrier from said stud, and spring-actuatedmeans compressed during said elevating movement and released to shovethe yarn carrier laterally when it is elevated clear of said stud.

In testimony whereof, I name to this specification.

ALONZO E. RI-IOADES.

have signed my

